Intended only for Fabric 1.21.10
Notice: No current plans on updating to a different version.
For the 21-21 private modded server, client-side download only. This modpack is focused on simple optimization, customizablity, quality of life tweaks, minor visual enhancements, and fun in a multiplayer world/server.
Labeled as client-side because it is meant to be paired with the server-side modpack. It's been made for a private modded server called 21-21, but people outside the server that like this modpack and wish to use it for their own server may find a list of the server-side mods and link to the server-side modpack at the bottom of the description.
21-21 contains these mods for client-side:- [EMF] Entity Model Features by Traben
- [ETF] Entity Texture Features by Traben
- 3D Skin Layers by tr7zw
- Anvil Too Expensive Fix by Eposs
- AppleSkin by squeek502
- Architectury API by architectury
- Balm by BlayTheNinth
- Better Mount HUD by Lortseam
- Better Statistics Screen by TheCSDev
- Better Tab by Fy17
- BetterF3 by TreyRuffy
- Capes by caelthecolher
- Chat Heads by dzwdz
- Chunks fade in by kerudion
- Cloth Config API by shedaniel
- Clumps by jaredlll08
- Collective by Serilum
- Continuity by PepperCode1
- Cut Through by Fuzs
- Debugify by isxander
- Durability Tooltip by SuperMartijn642
- Dynamic FPS by juliand665
- Elytra Trims by KikuGie
- Entity Culling by tr7zw
- Fabric API by modmuss50
- Fabric Language Kotlin by modmuss50
- FerriteCore by malte0811
- Forge Config API Port by Fuzs
- Gamma Utils (Fullbright) by Sjouwer
- ImmediatelyFast by RaphiMC
- Inventory Profiles Next by blackd
- Jade by Snownee
- LambDynamicLights by LambdAurora
- libIPN by blackd
- Lithium by CaffeineMC
- Mod Menu by Terraformers
- Model Gap Fix by MehVahdJukaar
- ModernFix-mVUS by Coredex
- More Chat History by JackFred
- More Culling by FX
- Mouse Tweaks by YaLTeR
- No Chat Reports by Aizistral
- Open Parties and Claims by thexaero
- OptiGUI by opekope2
- Particle Rain by PigCart
- Puzzles Lib by Fuzs
- Reese's Sodium Options by FlashyReese
- Shulker Box Tooltip by MisterPeModder
- Silk by jakobkmar
- Simple Voice Chat by henkelmax
- Sit by bl4ckscor3
- Sodium by CaffeineMC
- Sodium Extra by FlashyReese
- Sound Physics Remastered by henkelmax
- SuperMartijn642's Config Lib by SuperMartijn642
- TCDCommons API by TheCSDev
- Text Placeholder API by Patbox
- Veinminer by Miraculixx
- Veinminer Enchantment by Miraculixx
- Xaero's Minimap by thexaero
- Xaero's World Map by thexaero
- YetAnotherConfigLib by isxander
- Your Options Shall Be Respected (YOSBR) by shedaniel
- Zoomify by isxander
^ As of the latest version of the modpack--some are required for server-side as well and will be included in the server-side list.
21-21 requires and recommends these mods for server-side:- Almanac by frikinjay
- Anvil Restoration by Serilum
- Anvil Too Expensive Fix by Eposs
- AppleSkin by squeek502
- Architectury API by architectury
- Balm by BlayTheNinth
- Better Statistics Screen by TheCSDev
- Cloth Config API by shedaniel
- Clumps by jaredlll08
- Collective by Serilum
- Concurrent Chunk Management Engine (Fabric) by ishland
- Debugify by isxander
- Elytra Trims by KikuGie
- Fabric API by modmuss50
- Fabric Language Kotlin by modmuss50
- FerriteCore by malte0811
- Forge Config API Port by Fuzs
- Jade by Snownee
- Let Me Despawn by frikinjay
- Lithium by CaffeineMC
- ModernFix-mVUS by Coredex
- NetherPortalFix by BlayTheNinth
- No Chat Reports by Aizistral
- Open Parties and Claims by thexaero
- Puzzles Lib by Fuzs
- Silk by jakobkmar
- Simple Voice Chat by henkelmax
- Sit by bl4ckscor3
- Sleep by Jodek
- Sound Physics Remastered by henkelmax
- SuperMartijn642's Config Lib by SuperMartijn642
- TCDCommons API by TheCSDev
- Text Placeholder API by Patbox
- Veinminer by Miraculixx
- Veinminer Enchantment by Miraculixx
- Very Many Players (Fabric) by ishland
- Xaero's Minimap by thexaero
- Xaero's World Map by thexaero
- YetAnotherConfigLib by isxander
^ These are not included in this modpack as it's intended for client download for members of the 21-21 server. If you are not a part of the server but would like to use the modpack yourself on a world/server, there's a link right below to the server-side modpack
Link to server-side Modrinth modpack: https://modrinth.com/modpack/21-21-server-side
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.10
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 21-21 Client-Side 1.1.0.mrpack
- Download size: 568 KB
- Download link checked 9 Sept 2026 — working
These come from our own check of the pack file, not from the source page.